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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1533989187

Certificate GIA 1533989187

Diamond specifications and retailer prices

From $289 CAD
As of November 6, 2026
Save $1,520 CAD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,809 CAD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533989187. Listed at 21 retailers as of November 4, 2026, with prices from $289 to $1,809, a $1,520 spread on the same certified stone. NZ Jewellers lists it at $1,809. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.45
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1533989187
Dimensions4.92 × 4.86 × 3.03 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather
Top View
4.92 mm4.86 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1533989187
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,809 CAD|Low: $289 CAD|High: $1,878 CAD|Avg: $614 CAD|-2.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 12$289 CAD
Retailer 18$316 CAD
Retailer 11$358 CAD
Retailer 6$399 CAD
Retailer 14$437 CAD
Retailer 10$447 CAD
Retailer 2$451 CAD
Retailer 7$461 CAD
Retailer 4$476 CAD
Retailer 15$500 CAD
Retailer 8$538 CAD
Retailer 17$559 CAD
Retailer 9$603 CAD
Retailer 19$621 CAD
Retailer 16$690 CAD
Retailer 5$712 CAD
Retailer 13$803 CAD
Retailer 3$920 CAD
NZ Jewellers$1,809 CAD

14 data points across 19 retailers

21 retailers$289 CAD to $1,809 CAD

A
Cheapest Retailer
-
$289 CAD
A
Retailer 2
-
$316 CAD
View
A
Retailer 3
-
$358 CAD
View
A
Retailer 4
-
$399 CAD
View
A
Retailer 5
-
$437 CAD
View
Retailer 6
-
$447 CAD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$451 CAD
View
A
Retailer 8
-
$461 CAD
View
A
Retailer 9
-
$476 CAD
View
A
Retailer 10
-
$500 CAD
View
Retailer 11
-
$524 CAD
View
Price last confirmed 51 days ago
A
Retailer 12
-
$538 CAD
View
A
Retailer 13
-
$559 CAD
View
Retailer 14
-
$603 CAD
View
Price last confirmed 7 days ago
A
Retailer 15
-
$621 CAD
View
A
Retailer 16
-
$690 CAD
View
A
Retailer 17
-
$712 CAD
View
Retailer 18
-
$768 CAD
View
Price last confirmed 38 days ago
B+
Retailer 19
-
$803 CAD
View
B+
Retailer 20
-
$920 CAD
View
Most Expensive
C
NZ Jewellers
557ebd78-ab8e-40a9-ac6c-43c110e4162f · Nov 4
$1,809 CAD
$1,295 USD
View
20 more retailers have this diamond
Prices start from $289 CADSave up to $1,520 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.45ct Round
$289 CAD